Apparatus for bonding heads into barrels



July 17, 1951 H. E. THYEN APPARATUS FOR BONDING HEADS INTO BARRELS Original Filed Oct. 31. 1947 2 SheetsSheet 2 a aavair-szaia INVEN TOR HERBERT E. THYEN Patented July 17,- 1951 OFFICE lirraaarcsroa nonnmo amps,

m'ro BARRELS Herbert E. irhyen, Jasper, ImL, minor to Jasper *Wood Cniters, Ina, Jasper, Incl, a corporation of Indiana onig'inalappiication October 31, 1947, Serial No. 783,243. Divided and this application February 1, 1949, Serial No. 73,939

(Cl. m-c) 3 Claims.

The invention relates to an apparatus forinstalling a barrel heat! within the end of a bilge barrel, and to-secure the same "therein withreenforcement: to prevent removal of the barrel head.

More particularly, the invention relates to apparatus for securing a barrel head construction within the end of a barrel, the barrel being of such construction that the barrel head can be inserted ir'eelythrough one end of the barrel for disposition in a'taperedseat provided in the end of-the barrel. After the barrel head is posltioned in the tapered Seahlayers of wood veneer are then positioned above the barrel head, and in engagement therewith. and secured to the upper edge of the barrel to hold the barrel head in position and thereby prevent its removal from the barrel.

An object or this inventlon is to provide apparatus for installing a barrel head construction within the end of a barrel, particularly of a bilge barrel, with more ease and facilit'm anti wherein,

after assembly, the barrel head cannot be re-' moved from the end of the barrel.

It is still another object of the invention to provide an apparatus for installing the barrel heads into the opposite ends of a barrel simul- "which Figure l is an elevational view of a barrel having a barrel head secured therein utilizing apparatus velf-this invention.

Figurezis a schematic view ofan apparatus in which the barrel heads may be'i'nstalled in a barrel.

Figure 3 is an enlarged cross-sectionallview of the upper portion of a barrel showing the meta.

nor of installing the'barrel head.

Figure 4 is a still further enlarged cross-sectional view of the barrel head of this invention to clearly show the glue lines andthe tapered seat for the barrel head.

Figure 5 is a partial cross-sectional view of the manner of. installing the barrel head in a barrel illustrating the use of high frequency energy for heating the bonding agent between the barrel head and the barrel. I

The manner of installing ahead in the end of a barrel, particularly a bilge barrel, has involved somewhat of a problem to obtain absolute leak-proofness and to bond the barrel head 2 to the barrel. and the end portion of the barrel is constructed in such a manner that the barrel head can readily be inserted into the end of the barrel and be bonded permanently to the barrel. v I

While the apparatus of this invention is particularly illustrated and describedwith reference. to the manufacture of a plywood barrel and the installingof a plywood head in the same, yet it will be understood the invention is applicable to barrels that may be constructed in other ways such as from a plurality of individual staves. Further, the barrel head may be a solid wood member rather than a plywood construction as shown and described herein.

The barrel disclosed in this invention is constructed such that the inner surface of the end portion of the barrel is shaped so that it has a cylindrical portion terminating in a tapered seat.

the tapered seat terminating in a ledge. A barrel head is provided with a tapered periphery to engage the tapered seat in the side'jwallof the barrel, the bottom or inner face off the barrel head engaging the ledge. One or more plies of wood veneer are then positioned within the cylin drical portion of the end of the barre with the.

ends joined with either a scarf or butt joint and in engagement with the inner surface of the barrel and with the upper or outer surface of the barrel head. The barrel head and the layer 01' layers of wood veneer are then urged against the barrel to seat the barrel head in the tapered seat and simultaneously expand the wood veneer plies against the cylindrical portion of the barrel end by the apparatus of this invention, a suitable bonding agent or adhesive being provided between th barrel parts.

InFig'ure 1 there is shown a plywood barrel to which may be constructed according to the method disclosed by C. U. Gramelspacher in Patent No. 2,365,754. The barrel I II is provided with the usual heads II, and may be provided with metal bands I! to protect the barrel dining handling. The upper end of the barrel will be constructed as more particularly illustrated in Figures 3 and 4.

The body of the barrel Ill may consist of a plywood wall L5, or may consist of a plurality,

of individual wood staves suitably secured together. The end portion of the 'wall It is'provided with a cylindrical portion is that extends from the end edge I l of the barrel toward the interior thereof. This cylindrical portion l5 terminates in a tapered portion II that is in the form of a truncated cone with the base portion In this invention the barrel head tioned outwardly toward the end edge of the wrel. The tapered seat portion terminates in a horizontal ledge I. which. forms a stop to regulate the position of the head.

Thebarrelhead liisadiscthatmaybe either of a plywood construction, as illustrated, or may be a solid member. The edge periphery 26 of the head H is tapered to cooperate with the tapered seat portion It in the inner surface of the wall I! of the barrel. I The barrel head disc II is, therefore, in the form of a truncated cone with the base positioned outwardly toward the end e of the barrel.

llvi t h the barrel head in position, as illustrated inFigures 3 and 4, one or more layers of wood veneer 2| are positioned between the barrel head II and the end edge ll of the barrel against the cylindrical wall portion ll of the barrel. These layers of wood veneer 2| are suitably bonded to the cylindrical wall portion l6 and to the head I of the barrel, a bonding agent 22 being provided for this purpose.

To install the barrel head within the end of the barrel Ill, it will, of course, be understood that the end portion of the barrel is first prepared with the cylindrical portion l6, the tapered seat portion II, and the ledge or stop IS. The barrel head II is also flrst provided with its tapered periphery 26.

The prepared inner surface of the barrel is then coated with an adhesive or bonding agent and the barrel head is dropped into position in engagement with the'tapered seat It with the inner surface of the barrel head H in engagement with the ledge l3. One or more plies of wood veneer 2| are then positioned within the cylindrical portion l6, a suitable bonding agent being provided between the layers of wood veneer and between the wood veneer and the barrel II.

The apparatus for holding the assembled barrel parts together and for bonding them together is then brought into engagement with -the upper edge of the wood veneer sheets 2|, which at this time may still extend above the upper edge I! of the barrel. The pressure member of the apparatus forces the wood veneer sheets 2| downwardly within the cylindrical portion ll of the barrel into engagement with the outer face of the barrel head II to thereby force the barrel head into engagement with the tapered seat It and the ledge l3. Heat is then applied to the wood veneer sheets 2| and to the barrel head H to bond the adhesive, or the adhesive may be an air drying adhesive.

The pressure applying apparatus consists of a head 25 that has a downwardly extending annular flange 26 that engages the outer surface of the wall l6 of the barrel when the head 25 is in the position shown in Figure 3. A centrally arranged backing plate 26 extends from the head 25 and is positioned coaxial of the cavity formed by the head 25 and the flange 26. The head 25 carries a flexible bag 21, surrounds the plate 26 and receives fluid under pressure through a pipe 23. The fluid admitted into the interior of the bag 21 may be hot and it may be circulated continuously within the bag 21 by providing a suitable fluid admitted into the bag 21, or by the use of external heat, such as in a hot room or oven.

An apparatus in which pressure can be applied upon the heads of the barrel during assembly and bonding is illustrated diagrammatically in Figure 2. The press may consist of a bed 36 which carries an hydraulic motor 3| having the ram 32 extending from the bed of the press.

The press will also be provided with a head 33 which carries an hydraulic motor 34 having a ram 35 extending through the head of the press. The rams 32 and 35 carry the pressure heads 25 and 25a, previously described. The hydraulic system for operating the hydraulic motors 3| and 34 may consist of a pump 46 which receives fluid from the supply tank 4| through the suction line 42. A pressure relief valve 43 relieves excess pressure from the hydraulic system above a predetermined value.

Fluid is delivered from the pump 46 through the discharge line 44 into the flow control valves 45 and 46. The flow control valve 45 has the service lines 41 and 46 which supply fluid under pressure to opposite ends of the hydraulic motor 34 to cause reciprocation of the ram 35. Similar ly, the flow control valve 46 is provided with service lines 49 and 56 to control the motor 3|.

The flow control valves 45 and 46 have exhaust lines 5| and 52, respectively, which discharge into the supply tank 4|. The flow control valves 45 and 46 are thus what is termed a four-way control valve to alternately supply fluid to opposite ends of an hydraulic motor while exhausting 66, having a control valve 6| therein. The fluid supplied may be either gaseous or liquid, and may be a hot fluid for the purpose of heating the bonding agent, as previously described.

In Figure 5 there is shown an alternate method of heating the bonding agent between the head II and the wall ll of the barrel and between the sheets of wood veneer 2|. In this arrangement the pressure applying member 25 is provided with a metal annular flange 26a, the main body of the pressure applying member 25 either being of insulating material, such as wood or the annular flange 260 may be insulated from a metal member which may form the body of the pressure applying member 25. A thin annular metal sheet 63 is placed between the expansible bag 21 and the inner wood veneer sheet 2 I. The metal sheet 63 and the flange 26a are adapted to be connected to a suitable source of high frequency current by means of the electric lines 64 and 65.

After the head of the barrel is placed in assembled condition as shown in Figure 1 and pressure has been applied to the expansible bag 21, high frequency current will be introduced into the electric lines 64 and 65 to heat the bonding agent and cause it to set. In this case, preferably,

a thermosetting resin is used as the bonding agent.

This application is a division of my co-pending application, Ser. No. 783,243 flled October 31, 1947.

While the device disclosed and described herein constitutes a preferred form of the invention, yet it will be understood that modifications that fall within the scope of the appended claims are intended to be included herein.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. Apparatus for bonding a head into a barrel, which apparatus consists of, a body member having an annular peripheral flange projecting from one side of said body, a projection extending from said body centrally thereof on the same side as said flange, spaced therefrom, and projecting in the same direction as said flange and cooperating therewith to form an annular cavity in said body that is open at one side thereof, a flexible expansible bag carried on said body within said cavity and arranged around said projection in juxtaposition thereto and having the periphery of the bag in spaced relationship to said flange to maintain open a part of said cavity annularly between said bag and said flange, and means connected with said bag for introducing fluid under pressure thereinto.

2. Apparatus for bonding a head into a barrel, which apparatus consists of, a body member having a flat annular surface thereon, an annular peripheral flangeprojecting from said body at the outer periphery of said annular surface, a projection on said body disposed centrally thereof and having the outer periphery in spaced relationship to said flange, spaced therefrom, and cooperating with said flange and said annular surface to form an open ended annular cavity in said body, said projection having a flat surface extending across the same parallel to the annular flat surface on said body, and a flexible expansible bag positioned in said cavity around said projection in juxtaposition thereto and having the periphery thereof in spaced relationship to said flange.

3. Apparatus for bonding a head into a barrel, which apparatus consists of, a body member having a flat annular surface thereon, an annular peripheral flange projecting from said body at the outer periphery of said annular surface, a projection on said body disposed centrally thereof and having the outer periphery in spaced relationship to said flange, spaced therefrom, and cooperating with said flange and said annular surface to form an open ended annular cavity in said body, said projection having a flat surface extending across the same parallel to the annular flat surface on said body, and a flexible expansible bag positioned in said cavity around said projection in juxtaposition thereto and having the periphery thereof in spaced relationship to said flange, said flange comprising a metal member and insulated electrically relative to said body member to form one electrode of a high frequency electrical circuit, and an annularly arranged metal member positioned within said cavity around the periphery of said bag in juxtaposition thereto and in spaced relationship to said flange and forming the other electrode of a high frequency electrical circuit.

HERBERT E. THYEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 518,537 Baker Apr. 17, 1894 1,567,387 Rode Dec. 29, 1925 2,102,949 Gammeter Dec. 21, 1937 2,265,398 Ryan Dec. 9, 1941 2,267,888 Arnold Dec. 30, 1941 2,294,138 Strock Aug. 25, 1942 2,322,962 Dickson et al June 29, 1943 2,342,846 Crandell Feb. 29, 1944 2,435,866 Bilhuber Feb. 10, 1948 2,441,699 Gramelspacher May 18, 1948 2,459,316 Gramelspacher Jan. 18, 1949 FOREIGN PATENTS Number Country Date 7,687 Great Britain Apr. 11, 1896 

